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Unread 08-03-2011, 15:49
Jonathan Norris Jonathan Norris is offline
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FRC #0610 (Crescent Robotics)
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Re: Take the "Bane" out of your Banebot P60s - Solution to Banebot P60 Weaknesses

I see what you are trying to accomplish here but at this point I would not recommend any team trying to drive a long arm off a banebots gear box. The gear boxes simply can't handle the shock loads of an arm, even when dampened by a gas spring. You've definitely solved some of the issues with the planetaries, but there are other issues I would be concerned with:

- with that high of a planetary reduction, the loads on last couple stages are pretty significant, to the point where I don't think those mild steel planetary gears will last very long.
- I would also be very concerned with stage plates in the last couple stages, the pins that the planetary gears rotate on are only press fit into the mild steel and have been known to come loose and destroy the gearboxes.

I would highly recommend teams looking into using the Fisher Price Gearboxes included in the kit, they make for a robust arm gearbox. They are a pain to mount, but the Fisher Price is still a beast of a motor and should handle the loads well as long as the arm is dampened.

If that's not an option I would recommend teams looking into cobbling together a AM gearboxes with a cimulator and sprocket reductions to get the desired reduction on a bane bots motor.
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